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CSA Group, 02/01/2005
Publisher: CSA
File Format: PDF
$545.00$1,090.00
Published:01/02/2005
Pages:36
File Size:1 file , 920 KB
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1.2 This Standard addresses the effects of aging on equipment required to mitigate the effects of a design basis accident and addresses the need to minimize common mode failure under accident conditions. The methodology presented for establishing and preserving environmental qualification will confirm the adequacy of the equipment to meet its design requirements.
1.3 The requirements established herein are to be used for the preservation of qualification during maintenance or modification of equipment and systems and are to be used in the procurement of equipment and parts.
1.4 Other CSA Standards may provide qualification requirements for specific equipment. These Standards should be used in conjunction with this Standard. In the event of any conflict between this Standard and other Standards referenced herein in regard to the specific requirements for environmental qualification, the requirements of this Standard apply.
1.5 Seismic considerations are not included within the scope of this Standard, except during equipment qualification testing (see CSA CAN3-N289.1).
1.6 In CSA Standards, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; "may" is used to express an option or that which is permissible within the limits of the standard; and "can" is used to express possibility or capability.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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